Recording and reproducing element



Oct. 14, 1941.

A. CORTELLA RECORDING AND REPRODUCING 'ELEMENT Filed Dec. 1, 1938 INVENTOR so Curie/la TTQRNEY iatented Oct. 14, 1941 UN [TED STATES PATENTS *OFFl-(IE Y 2,25s,5 96 V 1 RECORDING AND REPRODUGING ELEMENT Alfonso Gortella, New York, N. Y., assignor to Arthur A. Berard, Mount Vernon, N. Y.

Application December 1, 1938, Serial No. 243,301

3 Claims.

My invention relates generally to sound and light recording. More particularly, my invention relates to an improved construction for light and sound records suitable for reproduction.

One of the objects of my invention is to provide an improved record construction suitable for reproduction having a novel arrangement of independent sound and light tracks.

Another object of my invention is to provide an improved record construction of the character described which shall be simple to manufacture and which at the same time shall possess a high degree of efficiency in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the claims.

In the accompanying drawing, in which is shown one of the various possible embodiments of this invention,

Fig. 1 is an enlarged view of a fragment of a record made in accordance with my invention and showing the styli in operative position;

Fig. 2 is a cross-sectional View taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a cross-sectional view taken substantially on the line 3-3 of Fig. 1;

Fig. 4: is a plan view of the portion of the record shown in Fig. 1 with the styli removed; and

Fig. 5 is a view similar to Fig. 4 but showing that portion of the record where the grooves begin.

Referring now in detail to the drawing, I have shown a portion of a recording element I0 in greatly enlarged scale and which may take any desirable form known to the art for recording elements such as, for example, a disc or a cylinder.

My invention is particularly directed to the arrangement of suitable grooves adapted for sound or light tracks such as the grooves II and I2 shown in the drawing in which the upper or wider groove I2 communicates with a lower and narrower groove II. It is noted that the axes of these grooves II and 12 are arranged in alignment and in such manner that the said grooves are in diiferent parallel planes, thereby effecting a great saving of space. The lower groove II is provided with a sound track I4 while the upper groove I2 is provided with a light track I5. While as being of the lateral type and the light track 15 of the hill-and-dale type, it is understood that any other suitable formation for the sound and light tracks may be employed.

For cooperative action with the sound track [4 to reproduce the recorded sound, I provide a conventional pick-up device or stylus l6 suitably connected to any well known sound recording device (not shown). For visually reproducing the recorded light, I provide a conventional pick-up device or stylus I8 suitably connected to any well known television reproducing device such, for ex ample, as that described on pages 2 and 3 of the patent to J. L. Baird, No. 1,776,097, dated September 16, 1930. It is noted that the styli l6 and I8 are independent of each other and operate in tracks arranged at difierent levels so that either one may be used alone, if desired, without interference from the other. It is noted that the sound recording and television recording devices are to be suitably synchronized in the manner well known to the art.

It is also noted that the light recording stylus I8 is of a size larger than the bottom groove ll and the sound recording stylus i6 is of lesser size than the light groove 12 so that at no time can the wrong stylus be placed in the wrong groove.

Any suitable process may be employed for cutting the laterally arranged sound track M in the sound groove II as well as the hill-and-dale light track l5 in the light groove l2.

One such suitable method may be that shown and described in the said patent to J. L. Baird, No. 1,776,097, dated September 16, 1930, for Becording of views of objects or scenes or optical images or the like.

To facilitate the proper positioning of the styli l6 and 18 at the starting. points of the tracks l4 and i5, I provide enlarged areas 20 and 2| at the beginning of the grooves H and I2, respectively, as clearly shown in Fig. 5 of the drawing. These enlarged groove portions 20 and 2| are suitable spaced from each other so as to properly synchronize the starting of the sound and light reproductions.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiments above set forth, it is to be understood that all matter herein the drawing I have shown the sound track [4 in set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a reproducing device, in combination, a 5

recorded element comprising a member having a light track formed in a surface thereof and a sound track formed in the bottom wall of said light track, said light track being wider than said light track, said light track being wider than said sound track, a stylus adapted for cooperation with said light track, said stylus being of such size as to be prevented from entering into said sound track, and a second stylus adapted for cooperation with said sound track.

3. In a reproducing device, in combination, a recorded element comprising a member having a sound track formed in a surface thereof and a sound track,astylus adapted for cooperation with 10 light track formed in the bottom wall of said said light track, said stylus being of such size as to be prevented from entering into said sound track.

2. In a reproducing device, in combination, a

recorded element comprising a member having a 15 light track formed in a surface thereof and a sound track formed in the bottom wall of said sound track, said sound track being wider than said light track, a stylus adapted for cooperation with said sound track, said stylus being of such size as to be prevented from entering into said light track, and a second stylus adapted for cooperation with said light track.

ALFONSO COR'IELLA- 

